scholarly journals Element dependence of enhancement in optics emission from laser-induced plasma under spatial confinement

2014 ◽  
Vol 29 (4) ◽  
pp. 638 ◽  
Author(s):  
Changmao Li ◽  
Lianbo Guo ◽  
Xiangnan He ◽  
Zhongqi Hao ◽  
Xiangyou Li ◽  
...  
Keyword(s):  
Spatial Confinement ◽  
Laser Induced Plasma

Optimization of distances between the target surface and focal point on spatially confined laser-induced breakdown spectroscopy with a cylindrical cavity

2017 ◽  
Vol 32 (2) ◽  
pp. 367-372 ◽  
Author(s):  
Jin Guo ◽  
Junfeng Shao ◽  
Tingfeng Wang ◽  
Changbin Zheng ◽  
Anmin Chen ◽  
...  
Keyword(s):  
Emission Spectroscopy ◽  
Optical Emission Spectroscopy ◽  
Focal Point ◽  
Optical Emission ◽  
Target Surface ◽  
Laser Induced Breakdown Spectroscopy ◽  
Spatial Confinement ◽  
Laser Induced Plasma ◽  
Breakdown Spectroscopy ◽  
Laser Induced Breakdown

The spatial confinement effect in laser-induced plasma with different distances between the target surface and focal point is investigated by optical emission spectroscopy.

Shift of ionization equilibrium in spatially confined laser induced plasma

2019 ◽  
Vol 34 (10) ◽  
pp. 1975-1981 ◽  
Author(s):  
Aleksandr S. Zakuskin ◽  
Andrey M. Popov ◽  
Timur A. Labutin
Keyword(s):  
Ionization Equilibrium ◽  
Spatial Confinement ◽  
Laser Induced Plasma ◽  
Atomic Lines ◽  
Improve Determination

Spatial confinement of laser-induced plasma leads to shift of ionization equilibrium and can improve determination of elements by their resonant atomic lines.

Ultrastrong, Free-Standing and Large Nanofilms of Pyrenearamid

2019 ◽  
Author(s):  
Amalia Rapakousiou ◽  
Alejandro López-moreno ◽  
Belén Nieto-Ortega ◽  
M. Mar Bernal ◽  
Miguel A. Monclús ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Building Block ◽  
Aromatic Polyamide ◽  
Free Standing ◽  
Spatial Confinement ◽  
Polymeric Structure ◽  
Reduced Modulus ◽  
Organizational Arrangement ◽  
Polycyclic Aromatic ◽  
Nanoscale Building Block

We introduce poly(1,6-pyrene terephthalamide) polymer (PPyrTA) as an aromatic polyamide analogue of poly(p-phenylene terephthalamide) (PPTA), also known as Kevlar®. This work shows that the incorporation of polycyclic aromatic pyrene moieties improves drastically the mechanical properties of the polymeric structure, increasing elastic nanoindentation-determined modulus and hardness by factors of 1.9 and 4.3, respectively. Liquid deprotonated dispersions of PPyrTA nanofibers were used as nanoscale building block for producing large-surface, free-standing polymer macroscopic nanofilms. This 2D assembly leads to further significant improvements in reduced modulus and hardness (more than twice) compared to the starting polymer macroscale fibres, due to a better re-organizational arrangement of the PPyrTA nanofibers in the nanofilms, formed under 2D spatial confinement.

scholarly journals Spatial confinement – rapid 2D F− diffusion in micro- and nanocrystalline RbSn2F5

2019 ◽  
Vol 21 (4) ◽  
pp. 1872-1883 ◽  
Author(s):  
Maria Gombotz ◽  
Sarah Lunghammer ◽  
Stefan Breuer ◽  
Ilie Hanzu ◽  
Florian Preishuber-Pflügl ◽  
...  
Keyword(s):  
Spatial Confinement

NMR and conductivity spectroscopy reveal 2D diffusion in both microcrystalline and nanocrystalline RbSn2F5.

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